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CN-116464239-B - Multifunctional unpowered hood for public flue and smoke discharging and cleaning system constructed by multifunctional unpowered hood

CN116464239BCN 116464239 BCN116464239 BCN 116464239BCN-116464239-B

Abstract

The invention discloses a multifunctional unpowered hood for a public flue and a smoke discharging cleaning system which are constructed, wherein the unpowered hood comprises a pulley head, an angle-changing pipe neck, a waterproof base, a spiral pneumatic mechanism, a rotary spraying mechanism, a screw rod, an upper support and a lower support, the spiral pneumatic mechanism is arranged in the angle-changing pipe neck and fixedly connected with the screw rod, and the rotary spraying mechanism is arranged in the pulley head and fixedly connected with the upper support and can synchronously rotate along with the pulley head. The unpowered hood can guide the upward smoke to rotate to generate wind power by arranging the spiral pneumatic mechanism, so that power supplement can be provided when no natural wind or weak natural wind exists, the pulley head is driven to rotate from inside, the smoke discharging effect is improved, and the rotary spraying mechanism is used for carrying out rotary spraying under the assistance of the natural wind or the spiral pneumatic mechanism to wash the wall surfaces of the public flue and the pulley head, so that the flue scaling cleaning and the pulley head self-cleaning are realized.

Inventors

  • GAO CUILAN
  • HUANG XINHAN
  • ZHOU SHUIQING
  • HE XING
  • GUO LIJIAN
  • GAO ZENGLIANG

Assignees

  • 嵊州市浙江工业大学创新研究院

Dates

Publication Date
20260505
Application Date
20230428

Claims (9)

  1. 1. A smoke exhaust cleaning system for a public flue comprises an unpowered hood and a water supply tank (10), wherein the unpowered hood comprises a pulley head (1), an angle changing pipe neck (2) and a waterproof base (3), the waterproof base (3) is fixedly connected with the angle changing pipe neck (2), a screw rod (6) and an upper support (7) are arranged in the pulley head (1), the edge of the upper support (7) is connected with the inner wall of the pulley head (1), a lower support (8) is arranged in the angle changing pipe neck (2), the edge of the lower support (8) is connected with the inner wall of the angle changing pipe neck (2), the upper end of the screw rod (6) is rotatably connected with the top of the pulley head (1), the lower end of the screw rod sequentially penetrates out of through holes in the middle of the upper support (7) and the lower support (8), the smoke exhaust cleaning system is characterized by further comprising a spiral pneumatic mechanism (4) and a rotary mechanism (5), the spiral pneumatic mechanism (4) is arranged in the interior of the angle changing pipe neck (2), the spiral mechanism (401) and the spiral mechanism (401) is arranged in the rotary mechanism (401) and the rotary shaft (401) is fixedly arranged in the rotary mechanism (401) and the rotary mechanism (401) which is fixedly arranged in the rotary mechanism (401) and is fixedly arranged on the outer surface of the pulley head (401), the rotary spraying device comprises a pipe sleeve (501) and a group of spraying plates (502) which are uniformly distributed outside the pipe sleeve (501) along the circumferential direction, wherein the pipe sleeve (501) is sleeved outside a screw (6) and is fixed on an upper bracket (7), a plurality of spraying holes (5021) are formed in the surface of the spraying plates (502), water supply cavities which are communicated with each other are formed in the spraying plates (502) and the pipe sleeve (501), a water supply tank (10) is connected with a rotary spraying mechanism (5) through a water supply pipe (9), and an electromagnetic valve (11) is arranged on the water supply pipe (9); When the automatic cleaning device is used, the electromagnetic valve (11) is opened periodically, clean water in the water supply tank (10) flows to the rotary spraying mechanism (5) through the water supply pipe (9), and the rotary spraying mechanism (5) rotates along with the pulley head (1) under the assistance of natural wind or the spiral pneumatic mechanism (4), and the clean water in the automatic cleaning device is sprayed from the spraying holes (5021) to flush the wall surfaces of the pulley head (1) and the public flue.
  2. 2. The smoke evacuation cleaning system for public chimney according to claim 1, wherein the relation among the height H 1 of the screw type pneumatic mechanism (4), the height H 2 of the angle changing neck (2) and the height H 3 of the waterproof base (3) satisfies H 1 >H 2 +H 3 .
  3. 3. The smoke evacuation cleaning system for public flue according to claim 2, wherein the ratio of the diameter D 1 of the spiral blade (402) to the diameter D 2 of the corner neck (2) is D 1 ：D 2 =1/2 to 2/3.
  4. 4. The smoke exhaust cleaning system for the public flue according to claim 1, wherein the pulley head (1) comprises a cap top (101), a bottom ring (102) and a group of fan blades (103) which are closely arranged between the cap top (101) and the bottom ring (102), the cap top (101) and the fan blades (103) are arc-shaped, and two ends of the fan blades (103) are fixedly connected with the cap top (101) and the bottom ring (102) through rivets respectively.
  5. 5. The smoke evacuation cleaning system for public flue according to claim 4, wherein a bearing is provided in the middle of the inner wall of the cap top (101), and the upper end of the screw (6) is inserted into the bearing.
  6. 6. The smoke exhaust cleaning system for the public flue according to claim 5, wherein the upper bracket (7) is fixedly connected with the inner wall of the bottom ring (102) through rivets, and the lower bracket (8) is fixedly connected with the inner wall of the corner tube neck (2) through rivets.
  7. 7. The flue gas cleaning system for public flues according to claim 1, wherein the electromagnetic valve (11) is provided with a temperature sensor.
  8. 8. The smoke evacuation cleaning system for public flue according to claim 1, wherein the water supply pipe (9) comprises a first water supply pipe (901) arranged on the pipe sleeve (501) and a second water supply pipe (902) arranged on the water supply tank (10), and the first water supply pipe (901) and the second water supply pipe (902) are communicated through a rotary joint (903).
  9. 9. The flue gas cleaning system for public flues according to claim 1, wherein the liquid level in the water supply tank (10) is higher than the top position of the spray plate (502) of the rotary spray mechanism (5).

Description

Multifunctional unpowered hood for public flue and smoke discharging and cleaning system constructed by multifunctional unpowered hood Technical Field The invention relates to the technical field of public flue smoke discharging equipment, in particular to a multifunctional unpowered hood for a public flue and a smoke discharging cleaning system constructed by the multifunctional unpowered hood. Background With the high-speed development of the economy in China, the building is built higher, the existing residential building generally adopts a high-rise design structure and is provided with a public flue, each resident connects an exhaust pipeline of the range hood to the public flue, and the range hood is discharged outdoors through the public flue. The fume exhaust process mainly relies on the mechanical pushing of a fume exhauster to enable fume to flow upwards, the fume in a middle-low floor building can be subjected to larger along-way resistance in the fume exhaust process, so that the fume exhaust effect is affected, and in addition, the fume exhaust can be hindered by wall scaling caused by long-time unclean fume flue. The existing solution is to add an auxiliary fan at the top of the public flue, and guide the fume to be discharged outwards by increasing a negative pressure source. But the auxiliary fan needs to be connected with a power supply when working, so that the installation cost is high, and the power consumption and the resource waste can be increased when smoke is exhausted. The appearance of the unpowered hood provides a preferable solution for people. The unpowered hood is a device for accelerating and converting air flow in any parallel direction into air flow vertical from bottom to top by utilizing the principle that natural wind speed in nature pushes a turbine of a fan to rotate and indoor and outdoor air convection so as to improve indoor ventilation effect. The negative pressure source has the advantages of simple and convenient installation, no need of adding a power supply, long-term operation and the like, and is used as the preference of the negative pressure source. However, under the condition of no natural wind, the unpowered hood cannot rotate by itself, so that the smoke discharging effect is poor, and the problem of scaling of a flue is still not solved. Disclosure of Invention In order to overcome the problems in the prior art, the application provides a multifunctional unpowered hood for a public flue. The multifunctional unpowered hood for the public flue can guide the upward flue gas to rotate to generate wind power by arranging the spiral pneumatic mechanism, so that power supplement can be provided when no natural wind or weak natural wind exists, the pulley head is driven to rotate from inside, the smoke discharging effect is improved, and the rotary spraying mechanism is arranged to perform rotary spraying under the assistance of the natural wind or the spiral pneumatic mechanism so as to flush the wall surfaces of the public flue and the pulley head, and realize flue scaling cleaning and self-cleaning of the pulley head. Correspondingly, the application also provides a smoke discharging and cleaning system for the public flue, which is constructed by adopting the multifunctional unpowered hood for the public flue. For the unpowered hood, the technical scheme of the application is as follows: The multifunctional unpowered hood for the public flue comprises a pulley head, an angle changing pipe neck and a waterproof base, wherein the waterproof base is fixedly connected with the angle changing pipe neck, a screw rod and an upper support are arranged in the pulley head, the edge of the upper support is connected with the inner wall of the pulley head, a lower support is arranged in the angle changing pipe neck, the edge of the lower support is connected with the inner wall of the angle changing pipe neck, the upper end of the screw rod is rotatably connected with the top of the pulley head, the lower end of the screw rod sequentially penetrates out of through holes in the middle of the upper support and the lower support, the multifunctional unpowered hood also comprises a spiral pneumatic mechanism and a rotary spraying mechanism, the spiral pneumatic mechanism is arranged in the angle changing pipe neck and comprises a rotating shaft and spiral blades arranged on the outer surface of the rotating shaft, the rotating shaft is fixedly connected with the lower end of the screw rod, the rotary spraying mechanism is arranged in the pulley head and can synchronously rotate along with the pulley head, the rotary spraying mechanism comprises a set of spraying plates uniformly distributed on the outer part of the sleeve, the sleeve is sleeved on the outer part of the screw rod and is fixedly arranged on the upper support, the surface of the spraying plate is provided with a plurality of spraying plates, the spraying plates are arranged on the surface of the sleeve, and